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For its price, and for its wide zoom range (roughly 27-190mm equivalent), it delivers more than decent image quality, very good considering the inevitable comprises.
Compared to premium glass, images aren't as sharp, and colour and contrast aren't as pleasing. But they're certainly pleasant, making this a worthwhile walkaround or vacation lens.
Autofocus is noisy and a bit slow.
Some people have complained about inaccurate focus, but on a Nikon D80, my copy focused fine.
Highly recommended for a low-budget travel/walk-around lens.

vincent1929

Registered: September 2010Posts: 1

Sigma 18-125mm f/3.5-5.6 DC review by vincent1929

Review Date: 9/5/2010

Would you recommend the product? Yes |
Total Spent: $161.00| Rating: 10

Pros:

Lightwight, sharp, size, cheap

Cons:

no for that price

I bought this lens for use on travel with my Nikon D60.
With this lens I take very nice pictures, including landscape, portrait and so on.
The range is very good, the image quality is also good.

simosa

Registered: September 2010Posts: 1

Sigma 18-125mm f/3.5-5.6 DC review by simosa

Review Date: 9/5/2010

Would you recommend the product? Yes |
Total Spent: $185.00| Rating: 10

Would you recommend the product? Yes |
Total Spent: $280.00| Rating: 6

Pros:

Image quality - if you mind price, size and weight.

Cons:

Autofocus is loud, slow and due to f 5,6 at the long end inaccurate in low light situations.

The sigma 18-125 won't do the job if you are looking for THE image of your life. If you take a look at the zoom-range and the price this has to be like this. It has a quite loud, even screeching autofocus which is often inaccurate, especially in low light situations. The autofocus is also quite slow. Tracking of fast moving objects is very hard to do. The lens shows some minor cromatic aberrations. The vignetting is acceptable even at full opened aperture. (You need to turn up the vignetting correction in adobe's raw converter up to ca. 25 to get rid of them, but this is really not a problem)

Very nice is the low price. It has THE perfect zoom range to travel and it's lightweight. It's quite sharp at f 8. There you can get quite decent results even when you are a censorius amateur. It does a "good" job for all day family & friends snap shooting. Good, but not more.

If you buy it, you can do nothing wrong. Buy it, start taking pictures and have fun. It's not the lens, it's not the body, it is your point of view that makes the shot. Otherwise spend 1200 € and have a look at a L-series lens... ;-)

Please have a look at my website. ALL pictures shown are taken with the 18-125 and an Canon EOS 10D, processed with several versions of adobe raw converter:

Would you recommend the product? Yes |
Total Spent: $250.00| Rating: 7

Pros:

sharp and practic

Cons:

light fall off and wavy (funny) distortions

That´s not a bad lens at all on my Pentax. Surprisingly sharp (at least my example) but distortions and light fall off is quiet strong, but it´s a wonderfull practic lens (18-125) - offering very good colours on my Pentax D-SLR! The buildings are quiet so so - not too bad.
The price is good too - at least a middle-class-lens!

SETI

Registered: April 2007Posts: 20

Sigma 18-125mm f/3.5-5.6 DC review by SETI

Review Date: 4/26/2007

Would you recommend the product? Yes |
Total Spent: $275.00| Rating: 10

Pros:

Lightwight, size, sharp, cheap

Cons:

no for that price

I got that baby in 2005 right after purchasing Nikon D50. All that I can say - it's very very good deal ! For a bargain price you get quite big range of focal length. The lens was very sharp... maybe I got a true Sigma ? =) I sold it some time ago, but still like the images produced by 18-125.
Thank you

element66

Registered: January 2007Posts: 6

Sigma 18-125mm f/3.5-5.6 DC review by element66

Review Date: 1/14/2007

Would you recommend the product? No |
Total Spent: $300.00| Rating: 5

Pros:

Nice zoom range (28-200mm for crop sensor)

Cons:

Very SOFT image, slow AF

I bought this lens with my 20D in 2005, and returned them within a week. The pics were very very soft. It was much softer than my Rebel w/18-55 kit. This lens does give a good range for a walk around len. Too bad IQ part is so poor. I bought the Canon 20D w/17-85 kit afterward and am very happy with it.

lajos

Registered: January 2007Posts: 7

Sigma 18-125mm f/3.5-5.6 DC review by lajos

Review Date: 1/14/2007

Would you recommend the product? No |
Total Spent: None indicated| Rating: 4

Pros:

reach, size, weight

Cons:

mine was not sharp and its colors/contrast were dull

This lens looked just right for a beginner SLR user. But I soon found out that my copy was not sharp, and the focusing was not accurate. My subsequent Sigma 17-70 mm was so much better, also in contrast and colors. (Unfortunately, that one was stolen but I'll get another soon.)

nrshapiro

Registered: December 2005Posts: 5

Sigma 18-125mm f/3.5-5.6 DC review by nrshapiro

Review Date: 1/9/2007

Would you recommend the product? Yes |
Total Spent: $250.00| Rating: 9

I have only one gripe with this lens. Mine broke just before the two year mark. It started to stick a bit while turning the zoom ring, then one day it would no longer zoom to the wide end or telephoto end. It's now a 45 to 70mm zoom, not what I paid for!

But I did take quite a number of shots with it. It was the lens most on my camera other than my EF-S 10-22. I never understood why this lens gets panned so much. I found it to be very sharp. At least comparing it to my 50mm 1.8 or my 70-200 F4/L, I didn't see any advantage to those at comparable focal lengths, at least on my 300D or 350XT.

Actually, I think the build of the lens was fine. I give it a 5 above because it didn't quite last two years. If that hadn't happened, I would have rated build a 10.

The only regret I had with this lens was that I would have liked image stabilization and more range. I was jealous when they came out with the 18-200. And now I have my eye on the new 18-200 OS. But I do have some "worries" about whether that lens, which is about twice as much as I paid for the 18-125, will last.

silverbluemx

Registered: November 2006Posts: 16

Sigma 18-125mm f/3.5-5.6 DC review by silverbluemx

Review Date: 1/4/2007

Would you recommend the product? Yes |
Total Spent: $240.00| Rating: 8

Distorsion at the wide end, softness at the long end, some AF problems at 18mm.

I bought this lens to replace the kit lens of my EOS 300D, and it outperforms it in every domain. This focal range is extremely convenient as a walkaround lens and perfectly suits my needs (but I'd love a wider aperture too...).
Image quality is good wide open under 70mm, and sharp on the whole focal range when stopped down to f/8, but is never "excellent" and sometimes lacks some contrast.
Build quality feels good (I like the material of it, and its weight gives a good feeling) but it is subject to zoom creeping when held almost vertically, especially with the hood on.
AF operation is fast enough, and not too noisy, but I found it to be sometimes inaccurate at 18mm. This problem dissapears when I use the center AF sensor only (not a big deal for me).
The lens hood is supplied with the lens and is very convenient, though beeing shaped to fit the FOV at 18mm it becomes less efficient on the long end.

So, this lens is a very good walkaround/vacation lens for APS-C DSLR and its price makes it very attractive too.

Craig C123

Registered: November 2006Posts: 2

Sigma 18-125mm f/3.5-5.6 DC review by Craig C123

Review Date: 1/1/2007

Would you recommend the product? No |
Total Spent: $260.00| Rating: 4

Pros:

Light and compact.

Cons:

Resultant image quality is shoddy at too many points in the zoom and aperture range.

I bought this lens when i bought a new Nikon D50. I opted for it over the Tamron 18-200 mm zoom, thinking i would get sharper pictures given the narrower (but still broad) zoom range. Not so! I found it pretty disappointing in terms of sharpness through much of the range. My photo results suggest there are a few sweet spots of crisper focus in the midrange, but its too soft at the extremes and most of the inbetween spots to warrant keeping. I replaced it with the Nikon 17-70 mm, for just a bit more money, and got consistenly better pictures (though obviously losing some of the zoom range).

_Mike_D

Registered: December 2006Posts: 12

Sigma 18-125mm f/3.5-5.6 DC review by _Mike_D

Review Date: 1/1/2007

Would you recommend the product? Yes |
Total Spent: $250.00| Rating: 6

Pros:

Great zoom range, perfectly usable image quality at all focal lengths

Cons:

broke after 18 months of use

This was my primary lens on my digital rebel. It was truly the 'little lens that could' I could snap this on my camera and go just about anywhere knowing that I wasn't likely to need any other lenses.

That said, I was sad when the lens died after only 18 months of use. and since sigma only offers a 1 year warranty with their lenses, I could not get it repaired.

Overall I still recommend the lens, it served me well for thousands of pictures and it didn't cost me too much money. Just don't expect it to last forever.

llbeanie1

Registered: November 2006Posts: 17

Sigma 18-125mm f/3.5-5.6 DC review by llbeanie1

Review Date: 1/1/2007

Would you recommend the product? Yes |
Total Spent: None indicated| Rating: 6

Pros:

Cons:

good lens, but darkens viewfinder image

mbuf

Registered: December 2006Posts: 7

Sigma 18-125mm f/3.5-5.6 DC review by mbuf

Review Date: 12/28/2006

Would you recommend the product? Yes |
Total Spent: $250.00| Rating: 9

Pros:

very good range, good quality picture

Cons:

some distorsions wide, some soft tele

After few months I have replaced the kit lens with this one. The range is very good, the image quality is also good, with some exceptions:
- near 18mm some distorsions are clear visible; I correct this with PTLens;
- near 125 it is a little bit soft; aditional sharpening can be adjusted in RAW processing.
However, with this lens you can take very nice pictures, including landscape, portrait and so on. Tha macro capability is not so god as my Sigma 70-300, but this is not dedicated for macro.
The construction quality is much better that the kit one.
What I miss is the IS; at 125mm you need a good light to take blur free pictures. Because of this issue I sell this lens for Canon 24-105.

gadgetguy

Registered: May 2006Posts: 62

Sigma 18-125mm f/3.5-5.6 DC review by gadgetguy

Review Date: 12/14/2006

Would you recommend the product? Yes |
Total Spent: None indicated| Rating: 7

Pros:

convenient focal range

Cons:

image quality not good enough for large prints, poor color

The main reason to get this lens is convenience. It's lightweight and has probably over 90% of your FL needs. It's the perect match for an APS-C DSLR (especially the smaller ones) for travel and casual snaps - provided you don't plan to print large prints.

Output lacks 'punch' but if you're willing to do some post-processing you may get some pleasing results.

perpera

Registered: October 2005Posts: 13

Sigma 18-125mm f/3.5-5.6 DC review by perpera

Review Date: 11/26/2006

Would you recommend the product? No |
Total Spent: $350.00| Rating: 6

Pros:

god focal range, lightweight

Cons:

soft, soft, soft

Bought as alllround lens for Canon 350D. I delivered it back to the shop after only a week because it was ununacceptable soft even if stopped down to aperture 8 or 11!

jeeb

Registered: November 2006Posts: 3

Sigma 18-125mm f/3.5-5.6 DC review by jeeb

Review Date: 11/22/2006

Would you recommend the product? Yes |
Total Spent: $275.00| Rating: 7

Pros:

Decent performance for a wide-ratio zoom

Cons:

noisy autofocus, not super-sharp

I had this lens for a couple of years. For its price, and for its wide zoom range (roughly 28-200mm equivalent), it delivers more than decent image quality -- certainly not stellar, but very good considering the inevitable comprises. Compared to premium glass, images aren't as sharp, and colour and contrast aren't as pleasing. But they're certainly pleasant, making this a worthwhile walkaround or vacation lens. Autofocus is noisy and a bit slow. Some people have complained about inaccurate focus, but on a Canon Digital Rebel, my copy focused fine.

larsrc

Registered: November 2006Posts: 5

Sigma 18-125mm f/3.5-5.6 DC review by larsrc

Review Date: 11/22/2006

Would you recommend the product? Yes |
Total Spent: None indicated| Rating: 6

Pros:

Price, good range, reasonably sharp

Cons:

Not the best build, no hyperfocal scale, noisy AF, bad QA

I got this lens for my 350D instead of the kit lens, and haven't regretted it (having no more money to spend on camera right now). It covers a very useful range (comparable to the ubiquitious 28-200 lenses on fullframe) and delivers well. Its focusing is on the noisy side, and accuracy changes from copy to copy -- but I got mine swapped without any hassle. It extends during zoom, but appears parfocal and neither extends nor rotates the front element during focus. With the (included) lens hood, I never bother to put the lens cap on anymore (in a mild climate). Highly recommended for a low-budget travel/walk-around lens.

jsudduth

Registered: May 2006Posts: 1

Sigma 18-125mm f/3.5-5.6 DC review by jsudduth

Review Date: 5/20/2006

Would you recommend the product? Yes |
Total Spent: $280.00| Rating: 7

Pros:

good zoom range for "walkaround" lens

Cons:

vignetting at wide zoom f/3.5

I have been happy with this lens as a "walkaround" lens on my Nikon D50. The photos are sharp and the color looks good. The autofocus speeds are pretty fast, although it probably is a hair slower than the 18-55 kit lens (I tried one in the store) when it has to travel the whole focus range. The AF motor makes a little noise, but I don't find it objectionable. If you use this lens in point-and-shoot mode, you may be bothered by the vignetting at the 18mm setting and f/3.5. The vignetting is quite a bit less at f/5.6, and is practically gone at f/8. I normally shoot in aperture-priority mode at f/5.6, so it hasn't been too much of an issue for me.

ilind

Registered: December 2005Posts: 2

Sigma 18-125mm f/3.5-5.6 DC review by ilind

Review Date: 12/30/2005

Would you recommend the product? Yes |
Total Spent: $285.00| Rating: 7

Pros:

Good range, reasonable image quality, price

Cons:

I bought this lens as a reasonably priced alternative to the Canon 350D "kit" lens.

For the price, I'm a happy camper. It seems to do a good job in actual use.

I've posted a non-technical review that might be useful, just my own observations and a few sample images:

Would you recommend the product? Yes |
Total Spent: $390.00| Rating: 7

Pros:

Great range of focal lengths in one lens - no constant changing your glass

Cons:

Fairly heavy, "good" images but not "great"

At first, I was really pleased with this purchase and it's still the lens which is usually found on my 20D as a general purpose snapper. Fantastic if you're out somewhere and don't want to carry an additional lens - if you think about it, this can make the difference between getting a shot and missing it. It was fairly good value for money and the results are slightly better than the stock 18-55 Canon kit lens. However, I know that more money would get me better image quality. It suits general leisure photography if most of your output is for your homepage or email. Had the 18-200 model been around when I bought this, I would have opted for the longer zoom as the weight increase is negligible.

RMH

Registered: November 2005Posts: 4

Sigma 18-125mm f/3.5-5.6 DC review by RMH

Review Date: 11/20/2005

Would you recommend the product? No |
Total Spent: $250.00| Rating: 5

Pros:

price, zoom range

Cons:

vignetting, slow, poor performance when using 18 mm

i had the Nikon version and while this sigma lens sounds like a bargain, it isn't.
There are so many do everything lensens on the market nowadays, hard to choose a good one. And as the saying goes 'a jack of all trades is a master of none'.
Same for this lens: heavy vigenetting when using 18 mm, slow focus, large and heavy for a digital only lens, only sharp at f/8 etc
Don't but this one and save ur money for a more expensive but higer quality lens

Bold Eagle

Registered: October 2005Posts: 4

Sigma 18-125mm f/3.5-5.6 DC review by Bold Eagle

Review Date: 10/24/2005

Would you recommend the product? Yes |
Total Spent: $250.00| Rating: 9

Pros:

Great general purpose range, good color, surprisingly sharp

Cons:

none

I bought this lens for use on travel with my Canon 20D. It was recommended by a friend, and I have not been sorry. No problems at all with focus, even on some fast moving subjects, or in low light. With Canon's 1.6x crop factor, the equivalent focal length is 30 to 200 mm, which covers 95% of my travel needs. The lens stays on the camera most of the time. The hood is self storing, a nice feature. Filter size is 62 mm which is fine, since I used to shoot Nikons and have a lot of top quality Nikon filters, and the 5T close up lens. For longer focal lengths, I have carried a Tamron 1.4x multiplier instead of a longer lens, which works surprisingly well, and the camera will still AF. Not a perfect combination, but better than no shot at all.

The lens is fairly compact and balances well on the 20D without the battery grip. It seems well made with a nice feel to the zoom ring.

hbx2004

Registered: October 2005Posts: 2

Sigma 18-125mm f/3.5-5.6 DC review by hbx2004

Review Date: 10/23/2005

Would you recommend the product? No |
Total Spent: None indicated| Rating: 5

Pros:

optical (image) quality, range

Cons:

AF incosistent and loud AF motor

I've used this lens on Canon 350D.
Main advantage of this lens is being 18-125mm and it's size which makes it very usable for "walkaround". Using this lens I can confirm that optical (image quality) this lens performs quite good thru whole range. Better than kit lens? Yes, but not much (IMO kit lens is quite good) -but Sigma is better built and "feels" better on camera. Also front barell doesn't rotate, so polar filter can be used.
Now the worst part: Auto focus is useless most of the time. Even when shooting under normal conditions (daylight, non-moving object, etc.) you can't be sure if AF will hit the target sharp. So learn using manual focusing is needed. That's the reason why I don't recommend this lens (even if it would be cheaper) -IMO if AF doesn't work as it should, it's useless.

mu55ster

Registered: October 2005Posts: 9

Sigma 18-125mm f/3.5-5.6 DC review by mu55ster

Review Date: 10/20/2005

Would you recommend the product? Yes |
Total Spent: $350.00| Rating: 8

Pros:

nice range, PT lens profile - Fast and detailed on K10D

Cons:

very slow auto focus on my Pentax DS

I didn't think much of this lens when I first got it with the Pentax ist DS, the auto focus is slow (I can do better manual), but you can get some good results with it. I got this one because PT lens (photoshop plug-in) has a profile for this lens and the DS, and since i tend to shoot alot of architecture it makes a really good versatile lens (PT lens fixes lens distortions). It is alittle heavy for the DS, but it is a pretty small camera. I am usually very happy with the results and as with any digital photo you can usually make it alot better with some post processing. The petal lens hood is a pain when trying to use a polariser, but it's good that it's included with the lens, very useful. I do like the lens and find it's wider angle very useful (although if sigma made the 10-20 in pentax mount I don't know how often I'd pick this one up, except maybe travel).

UPDATE: Well, a few things have changed - Sigma released the 10-20mm in K mount - Fantastic lens - and as I thought - i didn't touch the 18-125mm again. BUT - that was on the DS, I put the lens on my new K10D because as christmas day moves along i get very lazy with the whole zooming with my feet idea. Just looking at the photos has prompted this immediate update - the lens performs really well on the K10D. Auto focus is quite amazing compared to the DS, and the image quality is much better - it actually seems sharper, dispite the extra demands placed on it by the 10mp sensor - very weird, but makes me glad I didn't sell the lens - so it deserves a new score - well done.